Re: Pre-n or not Pre-n

Antenna spacing is greater than 1/2 wavelength. MIMO benifits from scatter.

On 9/7/05, Casey Halverson <[email protected]> wrote:
> FYI,
> 
> Removing, adding, or modifying antennas with pre-n/n hardware is a bad
> idea.
> 
> Beam forming is only possible by properly spaced antennas.  Putting two
> random antennas at different phases with different lengths of coax is
> asking for trouble.
> 
> 
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]] On Behalf Of
> > [email protected]
> > Sent: Tuesday, September 06, 2005 7:09 AM
> > To: [email protected]
> > Subject: Pre-n or not Pre-n
> >
> > I need to wifi a 110 acre hilly farm to provide access to two
> > other sites several hundred yards apart which cannot see each
> > other. (A can see B and C, but B and C cannot see each other)
> >  Some foilage is obstructing the view from A to B and C, but
> > using a patch antenna and gain omni a low speed connection
> > was made during a test.  They currently have one WRT54G and a
> > 10db FAB omni.
> >
> > Do you get any benefit from pre-n equipment when only the AP
> > is pre- n and the clients are 801.11g/b?  Assuming you do,
> > which of the following systems would work better (or make one
> > up yourself)?
> >
> > 1. Put a WRT54GX pre-n AP at point A (are the antennas removable?
> > It doesn't seem so), put a WRT54G with highest gain patch
> > antenna I can find at points B and C.
> >
> > 2. Put a WRT54G(S) at all three locations.  Put high gain
> > omni at point A and high gain patches at points B and C.
> >
> > Cost is a factor.  The network needs to be reliable and able
> > to run voip and hopefully a webcam.  I would like to mesh or
> > run WDS to provide general coverage over the area as much as
> > possible, but that is more of a side effect.  Providing
> > access to the two remote locations is the primary purpose.  I
> > picked the linksys boxes was because they are hackable,
> > inexpensive and I already have a few.
> >
> > Suggestions?
> >
> >
> >
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